Mount Logan is the 13th highest summit in the state of Washington and one of the largest mountains. Logan is the 4th highest peak in North Cascades National Park. The Logan massif is composed of Skagit Gneiss and has three glaciers, the Fremont, Banded, and Douglas. The standard route called the Southwest Route involves a long backpacking approach from Thunder Creek Trail or from the Lake Chelan area. From either approach, the route starts just north of Park Creek Pass and ascends the Fremont Glacier to a notch, and then scrambles along a ridge to the true summit. The mountain is named for George Logan, a miner with claims and a cabin nearby in the late 1800s.

Refer to Fred Beckey's Cascade Alpine Guide, Volume 2, or Selected Climbs in the Cascades, Vol. 1, by Potterfield and Nelson for information on the established climbing routes.